Wrench



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No. 809,389. Patented Deo. 16, 1884. y

lINrrn rains arnnrr trice.

VILLIAM l). HEFFRON, CF CHICAGO, ILLINOIS.

WRENCH.

SPECIFICATION' forming part'of Letters Patent No. 309,389, datedDecember 15,1884.

Application filed April 2l, 1884.

@ZZ whom, t may concer/L.-

Be it known that l, WILLIAM P. HnFrRoN, a citizen of the United StatesofAmerica, residing at- Chicago, in the county of Cook and State ofIllinois, have invented certain new and Useful Improvements inV'renches, of which the following is a specification, reference beinghad therein to the accompanying drawings.

My invention relates to an improved wrench.

The object of the invention is to secure a wrench which will be simplein construction, and which will be securely held in the desired positionduring the operation; and to the accomplishment of the above theinvention consists of the novel devices and combination of devices,aswill be described and claimed.

efercnce will be made to the accompanying drawings, in which Figure l isAan elevation of the wrench complete, Fig. 2a sectional view of thesame, and Fig. 3 an end elevation.

Like letters refer to like parts in each View. The wrench may be formedof any suitable material 5 and consists ofa handle, A, formed with ahead, B, and jaw C, which forms the stationary lip ofthe clampingdevice. Formed longitudinally through head B is an opening,

the out-lines of which are shown in Fig. 3, and into and through saidopening a bar, D, is inserted. Bar D has formed on its upper face andouter end a lip or jaw, E, which oompletes the clamping device inconnection with jaw C, above referred to. Bar D and its jaw E areadapted to be adjusted in the opening described as formed in head B, andwith respect to jaw C, so as to adjust the clampingl device. An opening,F,which counnunicates (No model.)

with the opening in which bar D rests, is formed in head B,` and extendsthrough the bottom thereof.

Pivoted in opening F is a pawl, G, one end of which projects out beyondhead B, and the other engages with ratchet-teeth formed upon the lowerface of bar D.

Situated within a recess, a, formed in head B, is a spring, H, which isconnected to pawl G, and which is arranged to keep said pawl in contactwith the teeth of bar D. By this arrangement it will be understood thatthe bar D, with the jaw E, with which it is provided, will be heldsecurely in any desired position with respect to jaw C, while at thesaine time by applying pressure to the outer end of pawl G the partswill be released and the adjustment of said bar rendered possible.

By the arrangement of parts as described it will be seen that a simpleand effective wrench will be obtained, and one in which the mechanismfor operating the adjustable jaw will bein a convenient position. YWhatI claim is- The combination, with handle A, of stationaryjaw C, formedtherewith,bar D, formed with jaw E, and with a rack on its undersurface, and pawl G,situated within the head ofhandle A, the parts soarranged that the bar D audits head move parallel with the handle, asshown.

In testimony whereofl aflix my signature in presence of two witnesses.

WILLIAM l?. HEFFBON.

fitnessesz M. J. Cin-renin, Louis N omiso'.

